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Topics - JeGX

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381
Link: http://www.ddj.com/development-tools/219000150

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Intel has announced Threading Building Blocks 2.2 (TBB), a high-level C++ library that abstracts threads to tasks to create portable and scalable parallel applications. Version 2.2 is available in both the commercial and open source releases. These are built from identical sources -- the only real difference is the license and support offerings.

Intel TBB's pipeline can now perform DirectX, OpenGL, and I/O parallelization by using the new thread_bound_filter feature. There are certain types of operations that require that they are used from the same thread every time and by using a filter bound to a thread, you can guarantee that the final stage of the pipeline will always use the same thread.

382
Link: http://techreport.com/articles.x/17321

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We recently had the opportunity to speak with Neil Trevett, who fills positions as both the Khronos Group's President and Nvidia's VP of Embedded Content. Consumers might not hear the Khronos name too often, but the organization is responsible for setting and updating a number of key standards: among them OpenGL, OpenGL ES, and most recently, OpenCL.

383
Link: http://www.tcmagazine.com/comments.php?id=28525

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Unlike Nvidia, which has yesterday released its first OpenGL 3.2 drivers, AMD is taking its time with support for the API while claiming it is still very committed to providing drivers compliant with the latest OpenGL versions. AMD is not yet tackling OGL 3.2 but is promising to have a Catalyst driver providing OpenGL 3.1 support for its ATI FirePro cards on August 12.

384
Link: http://www.techpowerup.com/index.php?100763

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Topower, a leading manufacturer of gaming and mainstream power supply systems, for desktop workstations, servers and Laptops, introduced today, and are proud to announce the Topower Tiger 1200 Watt Quad graphics card power supply.

385
Link: http://www.pcgameshardware.com/aid,691212/Brink-Multi-core-support-and-better-scaling-on-the-PC/News/

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PCGH: Does BRINK still support Windows XP? If yes: When do you think game development will be at a juncture where it's more viable to put all the effort into one rendering-path using only DirectX 11 (with downlevel-paths) and drop support for XP?

Arnout: Windows XP is still a very popular operating system so it doesn't make any sense for us to not support it. Being an OpenGL game it is arguably easier for us to still support this platform while making use of newer hardware features - all it needs is a new extension to be exposed by the driver and it can be used on any of the supported operating systems.

Rather than worrying too much about API transitions, we tend to focus on hardware capability transitions. For example, since geometry shaders are not available on all cards, we would have to split our rendering pipeline to support these down one branch. But since we only split for this newly developed hardware feature, the more standard resource management for textures, geometry data, etc does not have to be reworked at all.

386
Link: http://angisoft.de/Angisoft/Welcome.html

Quaternion Julia Raytracer</b> is the first real-time GPU raytracer for the IPhone 3GS. It renders the quaternion Julia fractal with high accuracy. By modifying the fractal parameters, an unlimited number of complex shapes can be generated.

iGPUTrace is the first real-time raytracer for the IPhone 3GS. It utilizes the PowerVR SGX GPU for raytracing using OpenGL ES 2.0 shaders.

387
Link: http://www.tomshardware.com/reviews/graphics-overclock-software,2369.html

For overclocking a GeForce GTX 260 core 216 and the radeon HD 4870...

388
Link: http://www.techradar.com/news/computing-components/graphics-cards/6-best-crossfire-and-sli-graphics-cards-on-test-617928

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Does a pair of mid-range boards, for instance, really deliver better performance than a single high-end card, for instance? What about the law of diminishing returns as you go beyond two GPUs? Moreover, have we reached the stage where either or both of CrossFire and SLI have become truly reliable?

389
3D-Tech News Around The Web / AMD's Evergreen codenames revealed
« on: July 22, 2009, 02:09:06 PM »
Link: http://www.theinquirer.net/inquirer/news/1468991/amd-evergreen-codenames-revealed

40nm DX11-based Evergreen products:
- highest-end enthusiast: Cypress
- performance: Juniper
- mainstream: Redwood / Cedar
- low level: Hemlock


390
Link: http://www.brightsideofnews.com/news/2009/7/21/why-directx-11-will-save-the-video-card-industry-again-and-why-you-dont-care.aspx

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Don't get me wrong, DX10 was a massive improvement... for programmers. The change in memory model and multitasking ability that made things like Aero possible was a huge improvement... which users couldn't see. So it's not that surprising they were reluctant to buy this resource heavy OS with what looked like just a few shiny bells and whistles. Now that XP is fading and Windows 7 is looking to give a real reason to upgrade (or at least fewer penalties for doing so), they'll move to DX11.

391
Link: http://www.ddj.com/hpc-high-performance-computing/218500694

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Dr. Dobb's: James, what is ray tracing and why is it important?

JM: Ray tracing is a method of using "virtual light rays" to determine visibility between two points in a geometric scene. This allows for the modeling of physically accurate lighting phenomena such as reflection, refraction, soft shadowing, and global illumination, just to name a few.

Dr. Dobb's: How does ray tracing differ from rasterization?

JM: As I mentioned earlier, ray tracing can allow all of the objects in the scene to interact with each other by casting light rays between them. These complex interactions create the difference between visually pleasing images and images that are obviously "computer generated". For example, light that bounces off of a red book on a shelf can produce a reddish tint on a white wall behind it.

Rasterization, by contrast, streams all of the geometry through the pipeline one object at a time. This means that the red book has no way to know that it should tint the white wall, and the white wall has no way to know about the red book.

392
3D-Tech News Around The Web / Notepad++ v5.4.5
« on: July 15, 2009, 11:03:51 AM »
Download: http://notepad-plus.sourceforge.net/

Changelog:
1.  Fix plugins shortcuts not working bug.
2.  Fix the tooltip on toolbar display bug for the plugins icons.
3.  Fix a crash that was occurring when searching in files from a deep path.
4.  Fix a crash issue (Unicode binary) while close Notepad++ with an RC file opened under Chinese Xp.
5.  Fix Pascal and Scheme syntax highlighting problem (fixes in styles.xml).
6.  Add SQL folding capacity.

393
Link: http://www.arcsoft.com/public/press_detail.asp?prID=402

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ArcSoft, Inc. announced today that its in-house upscaling technology, SimHD, now supports ATI Stream. This collaboration simply brings standard-definition video to near high-definition quality in real time with an unsurpassed speed.

ATI Stream technology enables graphics processors (GPU) to work seamlessly with the central processor (CPU), to accelerate applications. The result is balance enhanced platforms capable of running demanding computing tasks faster than ever without sacrificing performance.

"The complicated calculation conducted during real time upscaling has always been challenging," said George Tang, ArcSoft Vice President and General Manager of Video and Home Entertainment Group. "With ATI Stream, SimHD is able to take advantage of GPGPU, performs much faster during playback while presenting the ultimate video quality to users."

394
Link: http://www.pcgameshardware.com/aid,689924/DirectX-11-Compute-Shader-Three-times-faster-than-DX101-due-to-Local-Data-Share/News/

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AMD's Developer Relations boss Richard Huddy explains the mode of operation of Ambient Occlusion - the DirectX 11 Compute Shader is said to provide up to three times the performance possible with direct 10.1.

Using a Compute Shader path in DirectX 11 could offer up to three times the performance possible with DirectX 10.1, mentions Richard Huddy, AMD Developer Relations, in an interview with Pc Games Hardware. And even in DirectX 10.1 modern Radeon cards with their Fetch4 feature are able surpass pure DirectX 10 devices like the current Geforces.

395
3D-Tech News Around The Web / Inno3D GeForce GTX 295 Platinum Review
« on: July 14, 2009, 09:28:16 AM »
Link: http://www.guru3d.com/article/inno3d-geforce-gtx-295-platinum-review-test/

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Inno3D, known for their lovely products, recently launched the GeForce GTX 295 Platinum Edition, a product that is both classy and feature rich when it comes to the bundled items. This however is revision two of the GeForce GTX 295. The first model was based on two PCBs (two cards) inside one package. It was a very expensive product to make and with the current economy... well something needed to be done. NVIDIA went back to the drawing board and designed a single PCB capable of housing two GPUs.

396
3D-Tech News Around The Web / BlitzMAX Coder Issue #1
« on: July 14, 2009, 09:27:29 AM »
Link: http://www.blitzmaxcoder.com/

BlitzMAX, a next generation, OpenGL enabled, game programming language just release the first issue of BlitzMax Coder magazine.

397
Link: http://gpgpu.org/2009/07/07/ibm-sparse-matrix-vector-toolkit

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Sparse Matrix-Vector Multiplication Toolkit for Graphics Processing Units (SpMV4GPU) is a library optimized for NVIDIA Graphics Processing Units (GPUs). The GPU is fast emerging as the ideal architecture to use as an accelerator in a heterogenous computing environment. Modern GPUs are designed not only for accelerating traditional graphics kernels, but also for general-purpose computationally intensive kernels. The state-of-the art GPUs exhibit very high computational capabilities at a reasonable price.

398
Link: http://www.phoronix.com/scan.php?page=news_item&px=NzM3MA

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Also enhanced in this latest batch of updates are render performance improvements, a new type of particles emitter, reduced memory consumption with the UnigineScript interpreter, support for the GL_ARB_texture_rg and GL_EXT_texture_swizzle OpenGL extensions, Xinerama support, and much more. With the Xinerama support, Unigine and games using this engine can now run properly with multiple graphics cards / displays on Linux.

399
Link: http://www.pcgameshardware.com/aid,689039/Evga-GTX-285-FTW-vs-Sapphire-HD-4890-Atomic-Battle-of-the-OC-giants/Reviews/

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The Sapphire Radeon HD 4890 Atomic and the Evga Geforce GTX 285 FTW are the fastest versions of their graphics cards series and are heavily overclocked ex factory. PC Games Hardware tests if 1 GHz chip frequency is enough for the Radeon to close the gap to the Geforce.

400
Link: http://developer.amd.com/documentation/articles/pages/TenThingsAboutWindows7.aspx

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Windows 7 builds on past graphics successes with the DirectX (DX) APIs and provides improvements in both Direct3D and Direct2D graphics capabilities. DX 11 provides the foundation for developers to take advantage of the latest generation of GPUs as well as modern multi-core CPUs. Tessellation and compute shaders, two of the most important new DX 11 features, and have now become industry standards. AMD first introduced integer tessellation in 2001 on the ATI Radeon™ 8500 graphics card and later added floating point tessellation in 2006 on the ATI Radeon™ HD 2600 graphics card. In addition, the Direct3D runtime will be capable of running on older DX 9 and 10 hardware. This permits you to exploit multithreading capabilities and enables better resource administration even on previous-generation cards. To get a more comprehensive view of the capabilities provided by these new features, refer to the AMD articles listed in Resources.

Perhaps one of the most exciting new features enabled by Windows 7 is compute shaders. Compute shaders allow you to harness the computational power in the GPU in addition to what the CPU offers by exposing the shader pipeline to tasks that the CPU would traditionally handle. Compute shaders can dramatically speedup computation involving physics acceleration, audio signal processing, digital image processing, stream processing and many other tasks. Windows 7 will specifically leverage compute shader support to speed up transcoding of video files.    To get a feel for what compute shaders and tessellation make possible, check out the Froblins demo on AMD.com, which showcases these two features running side by side! AMD plans to release DX 11 solutions that will coincide with the release of Windows 7 later in 2009.

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